1 ; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
3 ; int jd(int *restrict A, int x, int N) {
4 ; for (int i = 1; i < N; i++)
5 ; for (int j = 3; j < N; j++)
10 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
12 define i32 @jd(ptr noalias %A, i32 %x, i32 %N) {
15 ; CHECK-DAG: %x.addr.1.lcssa.s2a = alloca i32
16 ; CHECK-DAG: %x.addr.1.lcssa.phiops = alloca i32
17 ; CHECK-DAG: %x.addr.1.s2a = alloca i32
18 ; CHECK-DAG: %x.addr.1.phiops = alloca i32
19 ; CHECK-DAG: %x.addr.0.s2a = alloca i32
20 ; CHECK-DAG: %x.addr.0.phiops = alloca i32
21 %tmp = sext i32 %N to i64
24 ; CHECK-LABEL: polly.merge_new_and_old:
25 ; CHECK: %x.addr.0.merge = phi i32 [ %x.addr.0.final_reload, %polly.exiting ], [ %x.addr.0, %for.cond ]
26 ; CHECK: ret i32 %x.addr.0.merge
28 ; CHECK-LABEL: polly.start:
29 ; CHECK: store i32 %x, ptr %x.addr.0.phiops
31 ; CHECK-LABEL: polly.exiting:
32 ; CHECK: %x.addr.0.final_reload = load i32, ptr %x.addr.0.s2a
34 for.cond: ; preds = %for.inc4, %entry
35 ; CHECK-LABEL: polly.stmt.for.cond{{[0-9]*}}:
36 ; CHECK: %x.addr.0.phiops.reload[[R1:[0-9]*]] = load i32, ptr %x.addr.0.phiops
37 ; CHECK: store i32 %x.addr.0.phiops.reload[[R1]], ptr %x.addr.0.s2a
38 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc4 ], [ 1, %entry ]
39 %x.addr.0 = phi i32 [ %x, %entry ], [ %x.addr.1.lcssa, %for.inc4 ]
40 %cmp = icmp slt i64 %indvars.iv, %tmp
41 br i1 %cmp, label %for.body, label %for.end6
43 for.body: ; preds = %for.cond
44 ; CHECK-LABEL: polly.stmt.for.body:
45 ; CHECK: %x.addr.0.s2a.reload[[R2:[0-9]*]] = load i32, ptr %x.addr.0.s2a
46 ; CHECK: store i32 %x.addr.0.s2a.reload[[R2]], ptr %x.addr.1.phiops
49 for.cond1: ; preds = %for.inc, %for.body
50 ; CHECK-LABEL: polly.stmt.for.cond1:
51 ; CHECK: %x.addr.1.phiops.reload = load i32, ptr %x.addr.1.phiops
52 ; CHECK: store i32 %x.addr.1.phiops.reload, ptr %x.addr.1.s2a[[R6:[0-9]*]]
53 ; CHECK: store i32 %x.addr.1.phiops.reload, ptr %x.addr.1.lcssa.phiops
54 %x.addr.1 = phi i32 [ %x.addr.0, %for.body ], [ %add, %for.inc ]
55 %j.0 = phi i32 [ 3, %for.body ], [ %inc, %for.inc ]
56 %exitcond = icmp ne i32 %j.0, %N
57 br i1 %exitcond, label %for.body3, label %for.end
59 for.inc: ; preds = %for.body3
60 ; CHECK-LABEL: polly.stmt.for.inc:
61 ; CHECK: %x.addr.1.s2a.reload[[R3:[0-9]*]] = load i32, ptr %x.addr.1.s2a
62 ; CHECK: %p_add = add nsw i32 %x.addr.1.s2a.reload[[R3]], %tmp1_p_scalar_
63 ; CHECK: store i32 %p_add, ptr %x.addr.1.phiops
64 %arrayidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
65 %tmp1 = load i32, ptr %arrayidx, align 4
66 %add = add nsw i32 %x.addr.1, %tmp1
67 %inc = add nsw i32 %j.0, 1
70 for.end: ; preds = %for.cond1
71 ; CHECK-LABEL: polly.stmt.for.end:
72 ; CHECK-NEXT: %x.addr.1.lcssa.phiops.reload = load i32, ptr %x.addr.1.lcssa.phiops
73 ; CHECK-NEXT: store i32 %x.addr.1.lcssa.phiops.reload, ptr %x.addr.1.lcssa.s2a[[R4:[0-9]*]]
74 %x.addr.1.lcssa = phi i32 [ %x.addr.1, %for.cond1 ]
77 for.inc4: ; preds = %for.end
78 ; CHECK-LABEL: polly.stmt.for.inc4:
79 ; CHECK: %x.addr.1.lcssa.s2a.reload[[R5:[0-9]*]] = load i32, ptr %x.addr.1.lcssa.s2a[[R4]]
80 ; CHECK: store i32 %x.addr.1.lcssa.s2a.reload[[R5]], ptr %x.addr.0.phiops
81 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
84 for.body3: ; preds = %for.cond1
87 for.end6: ; preds = %for.cond